The overarching mission of Practical Radiation Oncology is to improve the quality of radiation oncology practice. PRO's purpose is to document the state of current practice, providing background for those in training and continuing education for practitioners, through discussion and illustration of new techniques, evaluation of current practices, and publication of case reports. PRO strives to provide its readers content that emphasizes knowledge "with a purpose." The content of PRO includes:Original articles focusing on patient safety, quality measurement, or quality improvement initiativesOriginal articles focusing on imaging, contouring, target delineation, simulation, treatment planning, immobilization, organ motion, and other practical issuesASTRO guidelines, position papers, and consensus statementsEssays that highlight enriching personal experiences in caring for cancer patients and their families.